I suppose that if anything clears out as the story progresses it going to be the arm, but currently thing are not adding up for my,

Is the curse because of the people Ryu has killed or the people killed by the Dragon Sword or even the people killed by Ryu with the Dragon Sword, cos if it's got to do with the Dragon Sword then after the first level Ryu is no longer using the DS so it shouldn't get worse and what about the people killed with other weapons, and what if Ryu was holding another weapons instead of the DS like what would have happened if Ryu was holding the Wooden Sword? You see this is you shouldn't just carry one weapon

Also they said something about the curse being dragon scales (I would never have guessed), which is a very cool idea but not getting where that's coming from RotM doesn't seemed to be in to the whole dragons stuff, it could be because the DS is made from a dragons fang but again what if Ryu had a different weapon in his hand?

These are just some things that come to me and like I say if there's anything that will clear out as the story goes on it would be the arm

Really like these concept art, can’t wait to get my hands on the CE art book_________________